1260396736 has 42 divisors (see below), whose sum is σ = 2560857972. Its totient is φ = 615484800.

The previous prime is 1260396733. The next prime is 1260396743. The reversal of 1260396736 is 6376930621.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a junction number, because it is equal to n+sod(n) for n = 1260396692 and 1260396701.

It is not an unprimeable number, because it can be changed into a prime (1260396733) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 113011 + ... + 123661.

Almost surely, 2^1260396736 is an apocalyptic number.

1260396736 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1260396736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1280428986).

1260396736 is an abundant number, since it is smaller than the sum of its proper divisors (1300461236).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1260396736 is an equidigital number, since it uses as much as digits as its factorization.

1260396736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10749 (or 10696 counting only the distinct ones).

The product of its (nonzero) digits is 244944, while the sum is 43.

The square root of 1260396736 is about 35502.0666440702. The cubic root of 1260396736 is about 1080.1956481399.

The spelling of 1260396736 in words is "one billion, two hundred sixty million, three hundred ninety-six thousand, seven hundred thirty-six".